901. Ferrocene derivatives. Part IX. Some disubstituted derivatives

Abstract

Novel preparations of dimethyl ferrocene-1 , 1'-dicarboxylate, 1,l '-bis-(dimethylaminomethyl) ferrocene, ferrocene-1 , 1'-dicarboxyaldehyde, and 1,l'dicyanoferrocene are described. Some reactions of ferrocene-mono-and -dicarboxyaldehyde are reported.

Synthesis and structural characterization of 1′-(diphenylphosphino)ferrocene-1-carboxamide, its corresponding hydrazide, some heterocycles derived from the hydrazide and palladium(II) complexes with these functional phosphinoferrocene ligands

“…A signal due to CeP of fc is obscured by the solvent resonance while the 13 C due to solvent were not observed due to their poor intensities. EI MS: m/z (relative abundance) 414 (28) (23), 170 (24), 164 (18), 146 (7), 115 (7), 80 (10), 72 (11), 56 (14). HR MS (EI) calc.…”

“…In contrast, hydrazide 2 (Scheme 2) was prepared similarly to its non-phosphinylated counterpart (FcCONHNH 2 ) [10] by reacting Hdpf methyl ester (Medpf) [6a] with hydrazine hydrate in refluxing methanol. However, unlike the efficient synthesis of FcCONHNH 2 , the starting Hdpf ester was converted to 2 only partially while the rest remained unchanged (isolated yield of 2: 46%, 86% based on unrecovered Medpf).…”

Preparation of Cyclopentadienyltricarbonylrhenium Complexes Using a Double Ligand-Transfer Reaction

“…The reaction was diluted with CH 2 Cl 2 and washed (3×) with saturated NaHCO 3 . The organic phase was dried (MgSO 4 ), concentrated, and purified by flash column chromatography (4:1 hexane:ethyl acetate) to give 1 g (60%) of 1,1‘-bis(carbomethoxy)ferrocene …”

One-step synthesis of aryl-capped vinylferrocenes from ferrocene and aryl-substituted oxiranes

“…1 Compounds 1 can be prepared by Wittig reaction using ferrocenyl compounds either as carbonyl components or as ylide precursors [17][18][19][20][21] although this way often leads to mixtures of (E)-and (Z)-isomers. Other synthetic methods for 1 involve Heck coupling reaction [22,23], olefin cross-methatesis [24], McMurry reductive coupling of ferrocenyl carbonyl compounds [15,16] and samarium diiodide-promoted condensation of these compounds with benzyl bromides [25].…”